zgłosić się do czegoś Englisch:

We need witnesses to come forward with information about the attack.

No witnesses to the accident have come forward yet, despite the police appeal. Nobody has yet come forward with any information relating to the girl's death.

Do you go in for sailing?

I don't go in for that kind of thing.

why don't you go in for the "miss United kingdom" contest?

She decided to go in for the Weakest Link as the money was good.

I don't really go in for sports

And ever since then she's been encouraging me to go in for acting

I don’t go in for golf much.

His school had suggested he go in for the Young Musician of the Year competition.

People walk and go in for sports in the open air